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公开(公告)号：US5224836A
公开(公告)日：1993-07-06
申请号：US881948
申请日：1992-05-12
Applicant: John T. Gunn , Daniel T. Martin , William H. Harden
Inventor： John T. Gunn , Daniel T. Martin , William H. Harden
CPC classification number: F04C28/08 , F04C23/001 , F04D27/0261
Abstract: A compressor, used for compressing a working fluid to be discharged into a reservoir, includes at least one compressor element. A prime driver, capable of operating at varying angular velocities, applies motive force to the compressor. A ratio maintaining device, disposed between each compressor element and the prime driver, ensures that a ratio defined as an angular velocity of the compressor element divided by the angular velocity of the prime driver remains constant. The prime driver is typically internal combustion engine powered. A controllable fuel valve is in communication with the prime driver and is positionable for controlling a fuel flow to the prime driver. A controller positions the fuel valve based upon a combination of parameters including a variable setpoint reservoir pressure, ambient pressure and ambient temperature, wherein the prime driver is operated at an angular velocity at which the actual pressure at the reservoir can be maintained at the setpoint reservoir pressure. The controller is microprocessor or microcomputer based.
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公开(公告)号：US4934910A
公开(公告)日：1990-06-19
申请号：US195289
申请日：1980-10-08
Applicant: Robert E. Utter
Inventor： Robert E. Utter
CPC classification number: F01C21/003 , F01C1/0215 , F04C23/008 , F04C28/08
Abstract: Fluid apparatus of the scroll-type are disclosed wherein radially compliant means effect relative orbital motion between first and second wrap elements such that actual moving line contact occurs between their flank surfaces, and wherein linkage means interconnect one of the wrap elements and crankshaft means such that a component of the force acting therebetween is imposed upon the wrap element in a radially outward direction in order to provide a sealing or contact force between the wrap elements. Counterweight means impose a force upon the wrap element in a radially inward direction which is substantially equal to the centrifugal force experienced thereby, whereby the contact force is made independent of the operating speed of the apparatus and self-compensating with respect to pressure conditions therein.
Abstract translation: 公开了涡旋式的流体装置，其中径向顺应装置在第一和第二包裹元件之间产生相对轨道运动，使得实际的移动线接触发生在它们的侧面之间，并且其中连接装置互连包裹元件和曲轴装置之一，使得 作用在它们之间的力的分量在径向向外的方向上施加在包裹元件上，以便在包裹元件之间提供密封或接触力。 配重意味着在径向向内的方向上施加力，该力基本上等于由此所经历的离心力，由此接触力与设备的操作速度无关，并且相对于其中的压力条件进行自补偿。
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公开(公告)号：US4770609A
公开(公告)日：1988-09-13
申请号：US25977
申请日：1987-03-16
Applicant: Riichi Uchida , Seiji Tsuru , Kazuaki Shiinoki , Kotaro Naya
Inventor： Riichi Uchida , Seiji Tsuru , Kazuaki Shiinoki , Kotaro Naya
CPC classification number: F04C28/08 , F04C18/16 , F04C18/3442 , F04C23/005 , F04C25/02
Abstract: A two-stage vacuum pump apparatus has a first stage of vacuum pump constituted by a screw-type vacuum pump and a second stage vacuum pump constituted by an oil-sealed rotary vacuum pump operative to maintain the back pressure of the first stage vacuum pump at a level ranging from 1 to 100 Torr., whereby a high level of vacuum can be attained in a system to be evacuated without any risk of contamination of the evacuated system by oil. Also disclosed is a method of operating the two-stage vacuum pump apparatus.
Abstract translation: 两级真空泵装置具有由螺旋式真空泵和第二级真空泵构成的真空泵的第一级，第二级真空泵由油密封旋转式真空泵构成，该真空泵将第一级真空泵的背压保持在 水平范围为1至100乇，由此在要抽真空的系统中可以获得高水平的真空度，而不会有抽空系统被油污染的风险。 还公开了一种操作两级真空泵装置的方法。
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公开(公告)号：US4699570A
公开(公告)日：1987-10-13
申请号：US837429
申请日：1986-03-07
Applicant: Heinz Bohn
Inventor： Heinz Bohn
CPC classification number: F04C28/02 , F04B41/06 , F04B49/20 , F04C19/00 , F04C28/08 , G05D16/2066 , G05D16/2073
Abstract: A vacuum pump aggregate utilizes a microprocessor in conjunction with pressure and temperature sensors and motor control circuits to regulate the pressure by varying the speed of one or more vacuum pumps. Measured temperature and/or pressure values are compared with predetermined values by the microprocessor which in turn adjusts the speed of the motors.
Abstract translation: 真空泵集合体利用微处理器与压力和温度传感器和电机控制电路相结合，通过改变一个或多个真空泵的速度来调节压力。 测量的温度和/或压力值通过微处理器与预定值进行比较，微处理器又调整电动机的速度。
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公开(公告)号：US4664601A
公开(公告)日：1987-05-12
申请号：US758032
申请日：1985-07-23
Applicant: Riichi Uchida , Katsumi Matsubara , Seiji Tsuru
Inventor： Riichi Uchida , Katsumi Matsubara , Seiji Tsuru
CPC classification number: F04C28/08 , F04C28/06 , F04C2240/403
Abstract: An operation control system of a rotary displacement type vacuum pump capable of reducing a starting torque of the vacuum pump includes a suction regulating valve and a pressure sensor for monitoring suction pressure located in a suction passage of the vacuum pump, an inverter electrically coupled to a variable speed electric motor for driving the vacuum pump and a control unit. The control unit is operative, when the vacuum pump is started, to keep the suction regulating valve in a closed position until the value of suction pressure monitored by the pressure sensor reaches a predetermined upper limit value and to gradually increase the rpm. of the variable speed electric motor. The control unit is further operative to produce a signal for increasing or decreasing the rpm of the variable speed electric motor so as to bring the value of suction pressure monitored by the pressure sensor to the vicinity of a predetermined lower limit value.
Abstract translation: 能够减小真空泵起动转矩的旋转式真空泵的操作控制系统包括：吸入调节阀和用于监测位于真空泵吸入通道内的吸入压力的压力传感器;电耦合到 用于驱动真空泵的变速电动机和控制单元。 当真空泵启动时，控制单元可操作，以将吸入调节阀保持在关闭位置，直到由压力传感器监测的吸入压力值达到预定的上限值并逐渐增加转速。 的变速电动机。 控制单元进一步操作以产生用于增加或减小变速电动机的转速的信号，以使由压力传感器监测的吸入压力值接近预定的下限值。
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Patent Agency Ranking
公开(公告)号：US4519755A
公开(公告)日：1985-05-28
申请号：US572140
申请日：1984-01-23
Applicant: David E. Hanson
Inventor： David E. Hanson
CPC classification number: F04C29/12 , F04C23/001 , F04C28/08
Abstract: A unique gerotor-type pump is disclosed for pumping gases. The pump has an inner gear-type rotor mounted within and rotating off-center with respect to an outer gear-type rotor ring, about a parallel axis. Surfaces of the teeth of the inner rotor are in continuous contact with the outer rotor to define at least one pumping chamber which alternately expands and contracts as the inner and outer rotors turn. An elongated inlet port is positioned to communicate with the pumping chamber during a substantial portion of the cycle when the pumping chamber is expanding, (the intake cycle) and an outlet port is positioned to communicate with the pumping chamber only just prior to and at the end of the contraction or exhaust cycle. Oil for sealing and lubricating between moving parts of the pump is provided by employing differential pressure created by the pump's own operation to draw oil through passageways which communicate between an oil reservoir and the pumping chamber.
Abstract translation: 公开了用于泵送气体的独特的陀螺式泵。 该泵具有内齿轮式转子，该内齿轮型转子围绕平行轴线安装在外齿轮型转子环内并且偏心偏心。 内转子的齿的表面与外转子连续接触以限定至少一个泵室，其随着内转子和外转子转动而交替地膨胀和收缩。 当泵送室正在膨胀时（进气循环）和出口端口被定位成仅在刚好在泵送室之前和之后与泵送室连通，细长的入口端口被定位成在循环的大部分期间与泵送室连通 收缩或排气循环结束。 通过使用由泵自身操作产生的压差来提供油的运动部件之间的密封和润滑油，以将油通过在储油器和泵送室之间连通的通道。
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公开(公告)号：US4515515A
公开(公告)日：1985-05-07
申请号：US436909
申请日：1982-10-27
Applicant: Jean-Marc Segonne
Inventor： Jean-Marc Segonne
IPC: F04C29/02 , F04B49/02 , F04C20060101 , F04C18/16 , F04C23/02 , F04C28/06 , F04C28/08 , F04C28/24 , F04D27/00 , G05D20060101 , G05D7/03
Abstract: The invention relates to an air intake regulator for a compressor. The pressure in an oil separator is sent into the rear chamber of a jack having a membrane, which controls the acceleration or the slowing of a motor driving a compressor. A front chamber is placed under compression by the intake of the compressor. A selectively operable valve selectively interrupts the flow of air drawn in through an air filter.
Abstract translation: 本发明涉及一种用于压缩机的进气调节器。 油分离器中的压力被送入具有膜的千斤顶的后室，其控制驱动压缩机的马达的加速或减速。 前舱被压缩机的进气压缩。 选择性操作的阀选择性地中断通过空气过滤器吸入的空气流。
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公开(公告)号：US4358247A
公开(公告)日：1982-11-09
申请号：US162792
申请日：1980-06-25
Applicant: Toshitsugu Suzuki , Masayuki Tuchida
Inventor： Toshitsugu Suzuki , Masayuki Tuchida
IPC: F04C29/02 , F04B39/06 , F04B49/02 , F04B49/06 , F04B49/10 , F04C18/16 , F04C18/344 , F04C28/06 , F04C28/08 , F04C28/26 , F04C29/00 , F04C29/04
Abstract: An oil cooled compressor including a compressor member driven by a motor, an oil tank receiving oil therein and removing oil from the gas discharging out of the compressor member, an oil supplying device for supplying the oil in the oil tank into the compressor member, and a pressure responsive control device for controlling the operation of the compressor member. There are provided a first temperature detector detecting the temperature of the oil, a second temperature detector detecting the temperature of the gas, and a temperature responsive control device restricting the function of the pressure responsive control device in response to the temperatures detected by the first and second temperature detectors.
Abstract translation: 一种油冷压缩机，包括由电动机驱动的压缩机构件，容纳油的油箱和从排出压缩机构件的气体中除去油的油冷却压缩机，将油箱内的油供给到压缩机构件的供油装置，以及 用于控制压缩机构件的操作的压力响应控制装置。 提供了检测油的温度的第一温度检测器，检测气体温度的第二温度检测器和响应于由第一和第二温度检测到的温度限制压力响应控制装置的功能的温度响应控制装置 第二温度检测器。
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公开(公告)号：US4351160A
公开(公告)日：1982-09-28
申请号：US159572
申请日：1980-06-16
Applicant: Kenneth J. Kountz , Richard A. Erth
Inventor： Kenneth J. Kountz , Richard A. Erth
CPC classification number: F04C28/125 , F04C28/08 , F25B1/047
Abstract: A control system for a rotary helical screw compressor of the variable speed type includes a variable speed motor driving the compressor for varying the compressor capacity and a slide valve member which is adjusted optimally for varying the volume of gas trapped in the working chamber prior to discharge as a function of the pressure ratio across the compressor. There is also provided a control system for a rotary helical screw compressor of the fixed speed type which include a first slide valve member for varying the compressor capacity through modulating the volume of gas trapped in the working chamber prior to compression and a second slide valve member for adjusting optimally the volume of gas trapped in the working chamber prior to discharge as a function of the pressure ratio across the compressor.
Abstract translation: 用于变速式旋转螺杆式螺旋压缩机的控制系统包括驱动压缩机以改变压缩机容量的变速电动机和一个最佳调整的滑阀构件，用于在排放之前改变在工作室内捕获的气体的体积 作为压缩机两端的压力比的函数。 还提供了一种用于固定速度型旋转螺杆式螺旋压缩机的控制系统，该控制系统包括：第一滑动阀构件，用于通过调节在压缩之前在工作室中捕获的气体的体积来改变压缩机容量;以及第二滑阀构件 用于根据整个压缩机的压力比来最佳地调节在排放之前在工作室中捕获的气体的体积。
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公开(公告)号：US2477002A
公开(公告)日：1949-07-26
申请号：US45229942
申请日：1942-07-25
Applicant: JOY MFG CO
Inventor： PAGET WIN W
CPC classification number: F04C28/16 , F04C18/16 , F04C28/08 , Y10T74/19447
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